On Sun, 2 Oct 2005 15:02:42 +0100, "Graham" put
finger to keyboard and composed:

If you have a selection of capacitors you could find the approximate value
empirically.

Most generic capacitors will show their max voltage rating as a DC value,
not an AC RMS value.
A 250V RMS capacitor should be replaced with at least a 400 volt DC rating.

My guess is the value is 0.1uF (same as 100nF)

Maybe the "10" just means +/- 10% tolerance

The Xc of an 0.1uF cap at 50Hz is 32kohm, whereas for a 10uF cap it is
320 ohm. If the motor is to be driven at 70V from a 240V (?) supply,
then the latter option would draw a current of ~0.5A and dissipate 35W
in the motor. The first option requires only 5mA and a 350mW motor.

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.